Justification:
Listed as Vulnerable because of an observed population decline, estimated to be more than 30% over the last three generations, inferred from over-harvesting and habitat destruction and degradation. The generation length is estimated to be five years.

This species is known from southern China and northern Viet Nam. In China, there are records from southwestern Yunnan Province (Jingdong, Jinping, Luchun, Yongde, Cangyuan and Menglian counties), and in Viet Nam it is currently known only from the vicinity of Mount Fan Si Pan. It can be expected to occur in nearby Laos and Myanmar. It has been recorded from 1,000-1,900m asl.

It inhabits montane streams in forested areas, in particular in the vicinity of waterfalls. It has also been found along the mossy slopes of a man-made culvert. Breeding takes place in streams by lareval development. It probably does not occur where forest has been removed.

In China this species has declined seriously because of over-harvesting for food. It is also threatened by habitat destruction and degradation caused by small-scale subsistence logging and agriculture, expanding human settlements, and the establishment of power plants.

A number of protected areas are present within the range of this species. There is a need to ensure that offtake from the wild for human consumption is managed sustainably. Surveys are needed to establish the range of this species, and to determine its conservation needs.